The powder and compact characteristics as well as the sintering behaviour of two Ce02-G&03 compositions prepared by the oxalate coprecipitation method are studied as a function of the powder particle size and the pore-size distribution in the powder compacts. Shrinkage was measured at a constant heating rate and the results are compared with those obtained by isothermal sintering experiments. G...

The effect of dopant species on the sintering resistance zirconia-based ceramics remains a huge challenge in terms both experiment and theory. As one most popular materials for high-temperature protective coatings, it is still urgent to obtain rare earth-doped ZrO2 with high good phase stability. Here, stability earth oxides (La2O3, Nd2O3, Gd2O3, Y2O3)-stabilized zirconia (ZrO2) were thoroughly...

Poor toxicity characterization is one obstacle to the clinical deployment of Gd2O3@ SiO2 core-shell nanoparticles (Gd-NPs) for use as magnetic resonance (MR) imaging contrast agents. To date, there is no systematic toxicity data available for Gd-NPs prepared by laser ablation in liquid. In this article, we systematically studied the Gd-NPs' cytotoxicity, apoptosis in vitro, immunotoxicity, bloo...

In this work, we show the existence of flat band voltage transients in ultrathin Gd2O3 dielectric films on silicon, one of the high-k dielectrics nowadays proposed to substitute silicon oxide as the dielectric gate on the future complementary metal-oxide-semiconductor circuit generations. These transients were obtained by recording the gate voltage while keeping the capacitance constant at the ...

Rare-earth (RE) oxide surfaces are of significant importance for catalysis and were recently reported to possess intrinsic hydrophobicity. The surface chemistry of these oxides in the low temperature regime, however, remains to a large extent unexplored. The reactions occurring at RE surfaces at room temperature (RT) in real air environment, in particular, in presence of polycyclic aromatic hyd...